You test them in the Sheet Sandbox: <a href="https://wiki.roll20.net/Building_Character_Sheets#Custom_Sheet_Sandbox" rel="nofollow">https://wiki.roll20.net/Building_Character_Sheets#Custom_Sheet_Sandbox</a> And the Community wiki version of that page is way better: <a href="https://wiki.roll20.net/Default_Sheet_Settings" rel="nofollow">https://wiki.roll20.net/Default_Sheet_Settings</a> When it comes to Character sheet creation, your best bet is to use the Community wiki documentation, starting from the main page: <a href="https://wiki.roll20.net/Building_Character_Sheets" rel="nofollow">https://wiki.roll20.net/Building_Character_Sheets</a> It's updated and expanded constantly by the several community mebers, and contains more info than the pale copy that exists on the help center. The help center is great for Roll20 usage documentation, but it's a different story with Character Sheet creation. If you wonder why the Help Center features code examples with my name on it, it's bc I wrote half that article, and have expanded it since it was coped from the wiki to the help center. omonubi said: For example, if I
want a setting to toggle between a PC and an NPC "mode" and I include
that as a DSS, how does my character sheet know which "mode" its in?Thanks! Take a look at the second example on the page: <a href="https://wiki.roll20.net/Default_Sheet_Settings#Star_Wars_D6_by_Andreas_J" rel="nofollow">https://wiki.roll20.net/Default_Sheet_Settings#Star_Wars_D6_by_Andreas_J</a>. The first default setting is for "sheet type", and is stored in the attribute "sheettype".